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Evolution of crustal deformation in the northeast–central Japanese island arc: Insights from fault activity
Author(s) -
Miyakawa Ayumu,
Otsubo Makoto
Publication year - 2017
Publication title -
island arc
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.554
H-Index - 58
eISSN - 1440-1738
pISSN - 1038-4871
DOI - 10.1111/iar.12179
Subject(s) - active fault , geology , seismology , fault (geology) , quaternary , slip (aerodynamics) , stress field , deformation (meteorology) , paleontology , physics , finite element method , thermodynamics , oceanography
We evaluated fault activity in northeast–central Japan based on fault orientation, regional stress field, and slip tendency analysis for active and non‐active faults (i.e. faults for which Quaternary activity has not been identified). Slip tendency is generally higher along active faults than non‐active faults, although a high slip tendency was observed along some non‐active faults, indicating their potential to become active. The potential for fault activity along non‐active faults can be modeled using the temporal evolution from non‐active to active during long‐term crustal deformation. The density of potentially active faults varies spatially across the study areas and reflects the temporal evolution of crustal deformation in northeast–central Japan.